在内部表 (ABAP) 上使用 SELECT

Question

I am still very inexperienced with SAP ABAP .

I have an internal table that I want to filter further and further based on whether data is present.

I have tried the following, but unfortunately I cannot apply a SELECT to an internal table.

How can I solve this problem?

Hope I have explained my problem clearly enough!

"Here I'm getting the hole database into my internal table 
SELECT * FROM TABLE
  INTO CORRESPONDING FIELDS OF TABLE @itab.

"This should be my first filter if iv_name is not initial
IF iv_name IS NOT INITIAL.
  SELECT * FROM itab
    WHERE NAME = @iv_name
    INTO CORRESPONDING FIELDS OF TABLE @itab. 
ENDIF.

"This should be my second filter if iv_age is not initial
IF iv_age IS NOT INITIAL.
  SELECT * FROM itab
    WHERE AGE = @iv_age
    INTO CORRESPONDING FIELDS OF TABLE @itab. 
ENDIF.

Answer 1

There are several ways in ABAP to achieve your goal. You can use the DELETE keyword to filter the data in an internal table:

IF iv_name IS NOT INITIAL    
  DELETE itab WHERE name NE iv_name.
ENDIF.

Another possibility is to use the FILTER keyword, but the prerequisite is, that the internal table is TYPE SORTED or HASHED:

itab = FILTER #( itab WHERE name = iv_name ).